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<a href="#define-members">Macros</a>  </div>
  <div class="headertitle"><div class="title">Define values<div class="ingroups"><a class="el" href="group__mpu__functions.html">MPU Functions for Armv6-M/v7-M</a></div></div></div>
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<p>Define values for MPU region setup.  
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Macros</h2></td></tr>
<tr class="memitem:ga71d41084e984be70a23cb640fd89d1e2"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mpu__defines.html#ga71d41084e984be70a23cb640fd89d1e2">ARM_MPU_ACCESS_xxx</a></td></tr>
<tr class="memdesc:ga71d41084e984be70a23cb640fd89d1e2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Values for MPU region access attributes (in RASR field)  <br /></td></tr>
<tr class="separator:ga71d41084e984be70a23cb640fd89d1e2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gabc4788126d7798469cb862a08d3050cc"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mpu__defines.html#gabc4788126d7798469cb862a08d3050cc">ARM_MPU_AP_xxx</a></td></tr>
<tr class="memdesc:gabc4788126d7798469cb862a08d3050cc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Values for MPU region access permissions (in RASR field)  <br /></td></tr>
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<tr class="memitem:gab23596306119e7831847bd9683de3934"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mpu__defines.html#gab23596306119e7831847bd9683de3934">ARM_MPU_CACHEP_xxx</a></td></tr>
<tr class="memdesc:gab23596306119e7831847bd9683de3934"><td class="mdescLeft">&#160;</td><td class="mdescRight">Cache policy values for MPU region access attributes (in RASR field)  <br /></td></tr>
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<tr class="memitem:gadb0a92c0928c113120567e85ff1ba05c"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__mpu__defines.html#gadb0a92c0928c113120567e85ff1ba05c">ARM_MPU_REGION_SIZE_xxx</a></td></tr>
<tr class="memdesc:gadb0a92c0928c113120567e85ff1ba05c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size values of a MPU region (in RASR field)  <br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>Define values for MPU region setup. </p>
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<p>The following define values are used with <a class="el" href="group__mpu__functions.html#ga96b93785c92e2dbcb3a2356c25bf2adc">ARM_MPU_RASR</a> to setup the <a class="el" href="structMPU__Type.html#a8f00c4a5e31b0a8d103ed3b0732c17a3">RASR</a> value field in the MPU region.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="structARM__MPU__Region__t.html" title="Setup information of a single MPU Region.">ARM_MPU_Region_t</a>, <a class="el" href="group__mpu__functions.html#ga16931f9ad84d7289e8218e169ae6db5d">ARM_MPU_SetRegion</a>, <a class="el" href="group__mpu__functions.html#ga042ba1a6a1a58795231459ac0410b809">ARM_MPU_SetRegionEx</a>. </dd></dl>
<h2 class="groupheader">Macro Definition Documentation</h2>
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<p>Values for MPU region access attributes (in RASR field) </p>
<p>The following define values are used to compose the access attributes for an MPU region: </p><table class="markdownTable">
<tr class="markdownTableHead">
<th class="markdownTableHeadLeft">#define   </th><th class="markdownTableHeadLeft">TEX   </th><th class="markdownTableHeadLeft">Shareable   </th><th class="markdownTableHeadLeft">Cacheable   </th><th class="markdownTableHeadLeft">Bufferable   </th><th class="markdownTableHeadLeft">Description    </th></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_ACCESS_ORDERED   </td><td class="markdownTableBodyLeft">000b   </td><td class="markdownTableBodyLeft">1   </td><td class="markdownTableBodyLeft">0   </td><td class="markdownTableBodyLeft">0   </td><td class="markdownTableBodyLeft">Strongly ordered memory    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_ACCESS_DEVICE(S)   </td><td class="markdownTableBodyLeft">0s0b   </td><td class="markdownTableBodyLeft">S   </td><td class="markdownTableBodyLeft">0   </td><td class="markdownTableBodyLeft">S   </td><td class="markdownTableBodyLeft">Memory mapped peripheral device, shared (S=1) or non-shared (S=0)    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_ACCESS_NORMAL(O,I,S)   </td><td class="markdownTableBodyLeft">1BBb   </td><td class="markdownTableBodyLeft">S   </td><td class="markdownTableBodyLeft">A   </td><td class="markdownTableBodyLeft">A   </td><td class="markdownTableBodyLeft">Normal memory, with outer/inner cache policy (O/I=<a class="el" href="group__mpu__defines.html#gab23596306119e7831847bd9683de3934">ARM_MPU_CACHEP_xxx</a>, shared (S=1) or non-share (S=0)   </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#gabc4788126d7798469cb862a08d3050cc">&#9670;&#160;</a></span>ARM_MPU_AP_xxx</h2>

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<p>Values for MPU region access permissions (in RASR field) </p>
<p>The following define values are used to compose the access permission for an MPU region: </p><table class="markdownTable">
<tr class="markdownTableHead">
<th class="markdownTableHeadLeft">#define   </th><th class="markdownTableHeadLeft">Value   </th><th class="markdownTableHeadLeft">Access permissions    </th></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_AP_NONE   </td><td class="markdownTableBodyLeft">0x0U   </td><td class="markdownTableBodyLeft">None: any access generates a permission fault.    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_AP_PRIV   </td><td class="markdownTableBodyLeft">0x1U   </td><td class="markdownTableBodyLeft">Privileged Read/Write: privileged access only; any unprivileged access generates a permission fault.    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_AP_URO   </td><td class="markdownTableBodyLeft">0x2U   </td><td class="markdownTableBodyLeft">Privileged Read/Write; Unprivileged Read-only: any unprivileged write generates a permission fault.    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_AP_FULL   </td><td class="markdownTableBodyLeft">0x3U   </td><td class="markdownTableBodyLeft">Privileged Read/Write. Unprivileged Read/Write: full access, permission faults are never generated.    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_AP_PRO   </td><td class="markdownTableBodyLeft">0x5U   </td><td class="markdownTableBodyLeft">Privileged Read-only: any unprivileged access or privileged write generates a permission fault.    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_AP_RO   </td><td class="markdownTableBodyLeft">0x6U   </td><td class="markdownTableBodyLeft">Privileged and Unprivileged Read-only: any write generates a permission fault.   </td></tr>
</table>

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<p>Cache policy values for MPU region access attributes (in RASR field) </p>
<p>The following define values are used to compose the cacheability flags within the access attributes for an MPU region: </p><table class="markdownTable">
<tr class="markdownTableHead">
<th class="markdownTableHeadLeft">#define   </th><th class="markdownTableHeadLeft">Value   </th><th class="markdownTableHeadLeft">Cacheability policy    </th></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_CACHEP_NOCACHE   </td><td class="markdownTableBodyLeft">00b   </td><td class="markdownTableBodyLeft">Non-cacheable    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_CACHEP_WB_WRA   </td><td class="markdownTableBodyLeft">01b   </td><td class="markdownTableBodyLeft">Write-back, write and read allocate    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_CACHEP_WT_NWA   </td><td class="markdownTableBodyLeft">10b   </td><td class="markdownTableBodyLeft">Write-through, no write allocate    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_CACHEP_WB_NWA   </td><td class="markdownTableBodyLeft">11b   </td><td class="markdownTableBodyLeft">Write-back, no write allocate   </td></tr>
</table>

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<p>Size values of a MPU region (in RASR field) </p>
<p>The following define values are used to compose the size information for an MPU region:</p>
<table class="markdownTable">
<tr class="markdownTableHead">
<th class="markdownTableHeadLeft">#define   </th><th class="markdownTableHeadLeft">Value   </th><th class="markdownTableHeadLeft">Description    </th></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_32B   </td><td class="markdownTableBodyLeft">0x04U   </td><td class="markdownTableBodyLeft">Region size 32 Bytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_64B   </td><td class="markdownTableBodyLeft">0x05U   </td><td class="markdownTableBodyLeft">Region size 64 Bytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_128B   </td><td class="markdownTableBodyLeft">0x06U   </td><td class="markdownTableBodyLeft">Region size 128 Bytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_256B   </td><td class="markdownTableBodyLeft">0x07U   </td><td class="markdownTableBodyLeft">Region size 256 Bytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_512B   </td><td class="markdownTableBodyLeft">0x08U   </td><td class="markdownTableBodyLeft">Region size 512 Bytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_1KB   </td><td class="markdownTableBodyLeft">0x09U   </td><td class="markdownTableBodyLeft">Region size 1 KByte    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_2KB   </td><td class="markdownTableBodyLeft">0x0AU   </td><td class="markdownTableBodyLeft">Region size 2 KBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_4KB   </td><td class="markdownTableBodyLeft">0x0BU   </td><td class="markdownTableBodyLeft">Region size 4 KBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_8KB   </td><td class="markdownTableBodyLeft">0x0CU   </td><td class="markdownTableBodyLeft">Region size 8 KBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_16KB   </td><td class="markdownTableBodyLeft">0x0DU   </td><td class="markdownTableBodyLeft">Region size 16 KBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_32KB   </td><td class="markdownTableBodyLeft">0x0EU   </td><td class="markdownTableBodyLeft">Region size 32 KBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_64KB   </td><td class="markdownTableBodyLeft">0x0FU   </td><td class="markdownTableBodyLeft">Region size 64 KBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_128KB   </td><td class="markdownTableBodyLeft">0x10U   </td><td class="markdownTableBodyLeft">Region size 128 KBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_256KB   </td><td class="markdownTableBodyLeft">0x11U   </td><td class="markdownTableBodyLeft">Region size 256 KBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_512KB   </td><td class="markdownTableBodyLeft">0x12U   </td><td class="markdownTableBodyLeft">Region size 512 KBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_1MB   </td><td class="markdownTableBodyLeft">0x13U   </td><td class="markdownTableBodyLeft">Region size 1 MByte    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_2MB   </td><td class="markdownTableBodyLeft">0x14U   </td><td class="markdownTableBodyLeft">Region size 2 MBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_4MB   </td><td class="markdownTableBodyLeft">0x15U   </td><td class="markdownTableBodyLeft">Region size 4 MBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_8MB   </td><td class="markdownTableBodyLeft">0x16U   </td><td class="markdownTableBodyLeft">Region size 8 MBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_16MB   </td><td class="markdownTableBodyLeft">0x17U   </td><td class="markdownTableBodyLeft">Region size 16 MBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_32MB   </td><td class="markdownTableBodyLeft">0x18U   </td><td class="markdownTableBodyLeft">Region size 32 MBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_64MB   </td><td class="markdownTableBodyLeft">0x19U   </td><td class="markdownTableBodyLeft">Region size 64 MBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_128MB   </td><td class="markdownTableBodyLeft">0x1AU   </td><td class="markdownTableBodyLeft">Region size 128 MBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_256MB   </td><td class="markdownTableBodyLeft">0x1BU   </td><td class="markdownTableBodyLeft">Region size 256 MBytes    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_512MB   </td><td class="markdownTableBodyLeft">0x1CU   </td><td class="markdownTableBodyLeft">Region size 512 MBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_1GB   </td><td class="markdownTableBodyLeft">0x1DU   </td><td class="markdownTableBodyLeft">Region size 1 GByte    </td></tr>
<tr class="markdownTableRowOdd">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_2GB   </td><td class="markdownTableBodyLeft">0x1EU   </td><td class="markdownTableBodyLeft">Region size 2 GBytes    </td></tr>
<tr class="markdownTableRowEven">
<td class="markdownTableBodyLeft">ARM_MPU_REGION_SIZE_4GB   </td><td class="markdownTableBodyLeft">0x1FU   </td><td class="markdownTableBodyLeft">Region size 4 GBytes   </td></tr>
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